ST72F321J ST Microelectronics, ST72F321J Datasheet - Page 98

• Manufacturer Part Number: ST72F321J
• Description: 8-BIT MCU
• Manufacturer: ST Microelectronics

www.DataSheet4U.com
DataSheet
ST72321J
SERIAL COMMUNICATIONS INTERFACE (Cont’d)
Figure 58. SCI Block Diagram
98/179
TDO
RDI
4
U
.com
TIE
CR2
TRANSMITTER
INTERRUPT
TCIE
CONTROL
CLOCK
f
CPU
Transmit Data Register (TDR)
SCI
TRANSMIT
CONTROL
RIE
Transmit Shift Register
Write
ILIE
/16
TE
www.DataSheet4U.com
RE
/PR
RWU
WAKE
UNIT
UP
R8
SBK
T8
CONVENTIONAL BAUD RATE GENERATOR
SCP1
Received Data Register (RDR)
SCID
Read
SCP0 SCT2 SCT1 SCT0 SCR2 SCR1SCR0
Received Shift Register
TDRE TC RDRF IDLE OR
TRANSMITTER RATE
M
CONTROL
WAKE
RECEIVER
CONTROL
(DATA REGISTER) DR
PCE PS
RECEIVER RATE
CONTROL
CR1
PIE
NF
www.DataSheet
www.DataSheet
www.DataSheet
www.DataSheet4U
BRR
RECEIVER
FE
CLOCK
PE
SR
4U
4U.com
4U
.com
.com
.com